If I buy this phone will it work? I understand but I don't at the same time. Do I have to buy a sim card no matter what or is it only that phone that are unlock. Here are two links. Should I just go for the unlocked phone? Which one would be cheaper in the long run? Tight on money but tired of using my 6 years old phone.
http://www.amazon.com/gp/product/B00CIF9MJK/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3U48JYSMHU5RV